-LRB- CNN -RRB- -- The maker of Benadryl and Tylenol has added five lots of the popular over-the-counter drugs to its growing list of recalled products , McNeil Consumer Healthcare announced Wednesday in a written statement .

Saying the drugs were `` inadvertently omitted from the initial recall action '' of January 15 , McNeil disclosed it was voluntarily recalling four lots of Benadryl Allergy Ultratab Tablets -LRB- 100 count -RRB- and one lot of Extra Strength Tylenol Rapid Release Gels -LRB- 50 count -RRB- .

The Johnson and Johnson subsidiary said customers should call 1-888-222-6036 or use the website www.mcneilproductrecall.com for information on how to receive a refund or replacement product . The drugs were sold in the United States and in Bermuda , Puerto Rico , Trinidad and Tobago .

McNeil said the `` risk of adverse medical events is remote . '' Adverse event reports are consumer complaints of a serious side effect associated with the use of a medical product , according to the U.S. Food and Drug Administration . Adverse events could include death , hospitalization , disability and other health complications .

The products were recalled because of an unusual odor associated with the chemical 2,4,6-tribromoanisole -LRB- TBA -RRB- that was applied to shipping pallets , the company said .

McNeil 's other recalls in the past eight months were :

-- In November , five lots of Tylenol Arthritis Pain 100 count with the EZ-open cap were recalled for unusual odor leading to nausea , stomach pain , vomiting and diarrhea .

-- In December , the recall was expanded to include all product lots of Tylenol Arthritis Pain caplet 100 count bottles with the red EZ-open cap .

-- In January , the recall was widened to an undisclosed number of Tylenol , Motrin and other over-the-counter drugs after complaints of consumers feeling sick from an odor .

-- In May , 50 children 's versions of these nonprescription medicines were also recalled because of quality and safety concerns . Following the pediatric medicine recall , Johnson and Johnson suspended production at McNeil 's facility in Fort Washington , Pennsylvania , that manufactured the children 's drugs .

The lot number can be found on the bottle label . The lot numbers for the products recalled Wednesday were ASA202 , AJA008 , ADA194 , ABA022 and ABA264 . It was unclear how many bottles were recalled Wednesday .

The recalls have affected the availability of the drugs , CNNMoney reports . McNeil spokeswoman Bonnie Jacobs told CNNMoney that `` the pace of restocking is accelerating '' following the January recall . The drug maker expects to be `` at close to normal levels of production toward the end of the second quarter , '' Jacobs said .

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Drugmaker recalls five batches of Benadryl , Tylenol sold in U.S. , 3 other countries

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McNeil has issued five recalls in the past eight months

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Company has set up website for consumers to get information on returning product

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Recalls have resulted in shortages of some of the company 's drugs